Impossible to find air leak
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Ozdriver, Feb 8, 2017.
Page 7 of 9
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400 to 500 AUS$ in China.Ozdriver Thanks this.
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I located one on my truck and it was the leveling valve itself. Leaking around where the leveling arm pivots in the valve. Did not leave bubbles right away but 30 minutes later there were also kinds of bubbles there.
It only got sprayed because I heard air from the fittings but wanted to be sure which one was leaking. Turned out to be two fittings and the leveling valve. Could not hear the leveling valve itself. -
True that. I had that happen on the Horton air line once.
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I've given up for a few days, but I'll be completely isolating the air suspension system from the tank as the next step, even though the airbags stay up. Yes, it could be from the tank to the valves, I've got a left and right valve.
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@Ozdriver did you ever narrow down and find your air leak?
daf105paccar Thanks this. -
My load lever valve was bad and cause it too leak slowly.
Ozdriver Thanks this. -
No I didn't! It's got me beat. It loses all air overnight and goes from 120 to 60 in about 2 hours. I'll just have to wait until it gets worse. I've got near enough everything to fix it on the road if I have to. The airbags stay up for days.SAR Thanks this.
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